248 NOTES ON CAMBRIDGESHIRE PLANTS. 



left. Of those plants which are unknown elsewhere in the county 

 Solidago Yirgaurea and Trifolium suhterraneum, still occur in some 

 quantity by the roadsides about the site of the former heath ; but 

 recent search for Tcesdalia nudicauUs, Cerastium qiiatenielluw, Hy- 

 2Jericuiii hiimifiisum, Trifolium Jiliforvie, Feplis Portula, Gnaphalimn 

 si/lvaticum, and for Hypericum elodes, Erica cinerea, E. Tetralix, 

 Narthecium Ossifragum, Jimcus squarrosus, and Lomaria Spicant has 

 been unavailing. It is probable that the last six species at least are 

 extinct in Cambridgeshire. Hypericum pidchrum, Ornithopiis jjer- 

 jmsilhis, Ccdluna Erica, and Potentilla arge7itea, which have been 

 found, though very rarely, elsewhere in the county, still occur at 

 Gamlingay ; but it is improbable that Drosera rotundifulia, Genista 

 anglica, and Potentilla pahistris can now do so. 



In the Flora many new species are recorded from " the Common 

 at one mile from Cambridge towards London." This locality has 

 been greatly altered, the former bog having entirely disappeared, 

 and the Common being reduced to a small patch of ordinary pasture 

 land. All the plants recorded from here have disappeared, save 

 Sagina nodosa (1895, very sparingly, A. Shruhbs) and Trifolium 

 fragiferum. Stellaria idiginosa (very local in the county) still occurs 

 on the adjoining Sheep's Green, and the submerged form of Hip- 

 puris vulgaris occurs in the conduit by the Trumpington Road. 



The paucity of Eubi and (as regards numbers) of Carices is 

 worthy of note. Throughout the whole of the southern half, at any 

 rate, the most ordinary sedges are seldom met with ; and the rarity 

 of C. Pseudo-cyperus and C. vesicaria in such a county is as in- 

 explicable as is that of Cardamine amara. 



In addition to those cases mentioned in the general list, I know 

 of no recent record for the following (among others), and several of 

 them are no doubt extinct : — 



Rcemeria hybrida. Ajuga Chammpitys. 



Radiola linoides. Herniaria glabra. 

 Geraninm columbinum. Chenopodium murcde. 



Galium anglicum. Polygonum Bistort a. 



Pulicaria vidgaris. Herminium Monorchis. 



Anthemis nobilis. Luzula maxima. 



Antennaria dioica. Apera Sjnca-Venti. 



Arnoseris pusilla. A. interrupta. 



Hypochwris glabra. Holcus mollis. 



Lactuca virosa. Glyceria distans. 



Crepis fcetida. Lastrcea spinulosa. 



Hieracium boreale. Athyrium Filix-fcemina. 



Jasione montana. Botrychium Lunaria. 

 Antirrhinum Orontium. 



Geranium columbinum had no real claim to a place in the Flora ; it 

 was found once only, and then as a casual. Ajuga Chanmpitys and 

 Antirrhinum Orontium may still occur about Odsey , but if the 

 former does so, it is probably on the Hertford side of the boundary. 

 My friend Mr. I. H. Burkill, M.A., of Caius College, very kindly 

 sent me a list of records for inclusion in this paper. Some of them 



